Antiferromagnetic metal phase in an electron-doped rare-earth nickelate

Qi Song, Spencer Doyle, Grace A. Pan, Ismail El Baggari, Dan Ferenc Segedin, Denisse Córdova Carrizales, Johanna Nordlander, Christian Tzschaschel, James R. Ehrets, Zubia Hasan, Hesham El-Sherif, Jyoti Krishna, Chase Hanson, Harrison LaBollita, Aaron Bostwick, Chris Jozwiak, Eli Rotenberg, Su Yang Xu, Alessandra Lanzara, Alpha T. N’DiayeColin A. Heikes, Yaohua Liu, Hanjong Paik, Charles M. Brooks, Betül Pamuk, John T. Heron, Padraic Shafer, William D. Ratcliff, Antia S. Botana, Luca Moreschini, Julia A. Mundy

Research output: Contribution to journalArticlepeer-review


Long viewed as passive elements, antiferromagnetic materials have emerged as promising candidates for spintronic devices due to their insensitivity to external fields and potential for high-speed switching. Recent work exploiting spin and orbital effects has identified ways to electrically control and probe the spins in metallic antiferromagnets, especially in non-collinear or non-centrosymmetric spin structures. The rare-earth nickelate NdNiO3 is known to be a non-collinear antiferromagnet in which the onset of antiferromagnetic ordering is concomitant with a transition to an insulating state. Here we find that for low electron doping, the magnetic order on the nickel site is preserved, whereas electronically, a new metallic phase is induced. We show that this metallic phase has a Fermi surface that is mostly gapped by an electronic reconstruction driven by bond disproportionation. Furthermore, we demonstrate the ability to write to and read from the spin structure via a large zero-field planar Hall effect. Our results expand the already rich phase diagram of rare-earth nickelates and may enable spintronics applications in this family of correlated oxides.

Original languageEnglish (US)
Pages (from-to)522-528
Number of pages7
JournalNature Physics
Issue number4
StatePublished - Apr 2023
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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